Sash stop and lock.



PATBNTBD MAY a, 1o4.

sAsH sToP AND 1.00K.

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APPLIOATION'IILED NOV. 4. 1903.

I0 MODEL.

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UNITED STATES 'Patented May 3, 1904.

PATENT OFFICE.

WALTER EMOND, OF LOUDEN, NEW JERSEY.

SASH STOP AND LOCK.

SPECIFICATION forming part of Letters Patent No. 758,632, dated May 3, 1904:.V

Application filed November 4, 1903. Serial No. 179,841. (No model.)

To all whom it may concern:

Be it known that I, WALTER EMoND, a citizen of the United States, residing at Londen, in the county of Camden and State ofv New Jersey, have invented anew and useful Sash YStop and Lock, of which the following. is a rack-bar attached to a window-sash and adaptf ed to be engaged' by a pinion journaled in the housing attached to the window-frame, said pinion having a radially corrugated face, which' is adapted to Ybe engaged by a radiallygrooved disk normally held in engagement with the corrugated face of the pinion by spring-pressure; and the invention consists also in the employment of a spring-actuated bolt, which is adapted to engage the pinion and hold same locked against rotation.

The invention consists also in certain details of construction and novelties of combination, all of which will be fullydescribed hereinafter and pointed out in the claims.

In the drawings forming part of this speciiication, Figure lis a View showing a portion of a window frame and sash to which my inn vention is connected. Fig. 2 is a sectional elevation showing the rack-bar, pinion, and the housing in which the pinion is journaled. Fig. 3 is a horizontal sectional view, partly in plan. Fig. 4 is a view, partly in section and partly in end elevation, showing the relap tive positions of the stop and lock mechanism. Fig. 5 is a detail perspective view showing the pinion and the disk operating in connection therewith.

In carrying out my invention T employ a rack-bar A, which is attached to the side rail of the lower sash, said rack-bar being adapted to engage a pinion B,which is loosely mounted upon a shaft C, fixed in a housing D, arranged in the window-frame, a suitable opening being produced for thereception of this housing. One end of the shaft O is made round, as shown at C', and upon which the pinion turns. The opposite end of the shaft is made square, as shown at O2, and mounted upon said square portion of the shaft is a disk E, which seats in the circular recess B', produced in the oppos- 'ing face of the pinion B. The recessed por' tion ofthe pinion is corrugated or grooved radially, as shown at B2, and the opposing face of the disk E is correspondingly corrugated orgrooved, as shown at E2, the corrugated face of the disk and pinion being normally held in engagement by means of a spring E, which surrounds the square portion of the shaft and bears against the disk E at one end and against the housingD at the opposite end. The tension of this spring is suflicient to hold the pinion against movement when the window is at rest in any position-that is, the tension of the spring E is sufficient to support the weight of the window-sash and it will therefore not be necessary to employ sash cords and weights, as it is obvious that by moving the window up or down by hand the rack-bar engaging the pinion will cause said pinion to rotate in one direction or the other and during such rotation the corruga-v tions will slip over the corrugations or ridges of the disk E, the spring E yielding suflicient to permit such movement of the pinion, The moment, however, the window is brought to rest the engagement of the corrugated face will prevent any further movement of the pinion, and consequently the lwindow will be held at the desired point. For the purpose of locking the pinion against rotation and securely locking the window against movement either up or down I employ a bolt F, which is inserted through .the face of the casing and has a reduced inner end F', which is adapted to engage the toothed periphery of the pinion when forced inwardly. This bolt F has a works through the elongated opening G', produced in the plate G, attached to the face of the window-frame, and this attened portion F3 is provided with shoulders Fi upon the outer end and shoulders F5 upon the inner end, so that the said bolt can be held in either a locked or unlocked position, it being understood that in order to lock the bolt it is pushed inwardly to its full extent and then given a quarter-turn, so as to bring the shoulders Fi upon the inner side of the plate G, whereas when the bolt is unlocked it is turned to disengage the shoulders F4, and the spring will then force the bolt outwardly, removing the reduced end. The main portion of the bolt is round in cross-section, as shown in Figs. 3 and 4, and the spring H surrounds said bolt between the housing D and the shoulders F5, the purpose of said spring being to throw the bolt outwardly or to an unlocked position the moment thehandle is turned to such a position as to permit the unlocking of the bolt.

lt will be .understood that when the bolt is pushed inwardly, so that the end F passes between two ofthe teeth of the pinion, all movement of said pinion is prevented, and it will then be impossible to move the sash in either direction. This avoids the use of sash locks or fasteners commonly arranged upon the meeting-rails of the sashes.

It will thus be seen that I provide a simple and eicient device which combines the features and functions of a sash stop or balance in the sash lock or fastener.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination with a rack-bar, of a housing, apinion journaled in the housing, and adapted to engage the rack-bar, a disk mounted upon the same shaft as the pinion, the face of said disk being normally in contact with the face of the pinion, and a spring surrounding the shaft within the housing, and adapted to hold the disk in frictional contact with the face of the pinion.

2. rlhe combination with a rack-bar, of a housing, a pinion mounted in the housing and adapted to engage the rack-bar, the face of the pinion being recessed, said recessed portion being radially corrugated, a disk mounted upon the same shaft, as the pinion and having its opposing face radially corrugated means for holding the disk against rotation, together with a spring surrounding the shaft, and adapted to normally hold the disk Within therecessed corrugated portion of the pinion.

3. The combination with a rack-bar, of a housing having a shaft mounted therein, one portion of the shaft being round in cross-section and the other portion polygonal in crosssection, a pinion mounted upon the round portion of the shaft and adapted to engage the rack-bar, a disk mounted upon the square portion of the shaft, the opposing face of the pinion and disk being radially corrugated, and a spring for holding the said corrugated faces in engagement as set forth.

4. The combination with the rack-bar, of the housing, the pinion journaled in the housing, the spring-actuated friction-diskadapted to engage the face of the pinion, and the locking-bolt adapted to engage the toothed periphery of the pinion and hold same against movement, as set forth.

5. The combination with the rack-bar, of the housing, the shaft journaled in said housing, the pinion mounted upon the shaft, the

spring-actuated bolt having a reduced inner end, and a flattened outer end, and the plate having an elongated opening through which the flattened portion of the bolt works, said flattened portion having shoulders at each end,

as set forth.

WALTER EMOND. Witnesses:

HENRY TRoTH, H. S. GooDELL. 

